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A UPC barcode. The Universal Product Code (UPC or UPC code) is a barcode symbology that is used worldwide for tracking trade items in stores.. The chosen symbology has bars (or spaces) of exactly 1, 2, 3, or 4 units wide each; each decimal digit to be encoded consists of two bars and two spaces chosen to have a total width of 7 units, in both an "even" and an "odd" parity form, which enables ...
Co-inventor of the barcode. Norman Joseph Woodland (September 6, 1921 – December 9, 2012) was an American inventor and engineer, best known as one of the inventors of the barcode, for which he received a patent in October 1952. [ 1][ 2] Later, employed by IBM, he developed the format which became the ubiquitous Universal Product Code (UPC) of ...
PDF417. PDF417 is a stacked linear barcode format used in a variety of applications such as transport, identification cards, and inventory management. "PDF" stands for Portable Data File. The "417" signifies that each pattern in the code consists of 4 bars and spaces in a pattern that is 17 units (modules) long.
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A UPC-A barcode. A barcode or bar code is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. These barcodes, now commonly referred to as linear or one-dimensional (1D), can be scanned by special optical scanners, called barcode ...
EAN-8. An EAN-8 is an EAN/UPC symbology barcode and is derived from the longer International Article Number (EAN-13) code. [ 1] It was introduced for use on small packages where an EAN-13 barcode would be too large; for example on cigarettes, pencils, and chewing gum packets. It is encoded identically to the 12 digits of the UPC-A barcode ...
An EPC RFID tag used by Wal-Mart. The Electronic Product Code ( EPC) is designed as a universal identifier (using an idiosyncratic numerical code for each different commodity [ 1]) that provides a unique identity for every physical object anywhere in the world, for all time. The EPC structure is defined in the EPCglobal Tag Data Standard, [ 2 ...